Google tells me its this. Sizes may help and I may have some similar switches also listed. Picture of actual item and always happy to bundle together to save some postage. Last pic is to help me find it!
Austin Princess 1948-55 Bristol Daimler Distributor Cap as Lucas 407043 DX6A
HT Leads Ignition Cables Set fits AUSTIN PRINCESS 2.2 78 to 82 22H Lucas Quality
Austin Princess 1948 to 1955 Contact set as Lucas 407050 Distributor Points
NEW NOS LUCAS HEATED REAR WINDOW SWITCH 182SA AUSTIN PRINCESS 30540 LU30540
Austin Princess 2.0 1993cc 1978-81 CONTACT POINTS for Lucas Distributors
NEW UPGRADED AUSTIN PRINCESS 4 POT BRAKE CALIPERS & PAD KIT ESCORT CAPRI TRIUMPH
